compositor: pass the backend config struct to the backends init function

Add new configuration argument to the backend_init() function, which
will replace the current argc, argv, and config arguments.
After each backend is converted individually the unused parameters
will be removed.

Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>

src/compositor-drm.c

@@ -3238,7 +3238,8 @@ err_base:
 
 WL_EXPORT int
 backend_init(struct weston_compositor *compositor, int *argc, char *argv[],
-	     struct weston_config *config)
+	     struct weston_config *config,
+	     struct weston_backend_config *config_base)
 {
 	struct drm_backend *b;
 	struct drm_parameters param = { 0, };

src/compositor-fbdev.c

@@ -904,7 +904,8 @@ out_compositor:
 
 WL_EXPORT int
 backend_init(struct weston_compositor *compositor, int *argc, char *argv[],
-	     struct weston_config *config)
+	     struct weston_config *config,
+	     struct weston_backend_config *config_base)
 {
 	struct fbdev_backend *b;
 	/* TODO: Ideally, available frame buffers should be enumerated using

src/compositor-headless.c

@@ -260,7 +260,8 @@ err_free:
 WL_EXPORT int
 backend_init(struct weston_compositor *compositor,
 	     int *argc, char *argv[],
-	     struct weston_config *config)
+	     struct weston_config *config,
+	     struct weston_backend_config *config_base)
 {
 	int width = 1024, height = 640;
 	char *display_name = NULL;

src/compositor-rdp.c

@@ -1269,7 +1269,8 @@ err_free_strings:
 
 WL_EXPORT int
 backend_init(struct weston_compositor *compositor, int *argc, char *argv[],
-	     struct weston_config *wconfig)
+	     struct weston_config *wconfig,
+	     struct weston_backend_config *config_base)
 {
 	struct rdp_backend *b;
 	struct rdp_backend_config config;

src/compositor-rpi.c

@@ -555,7 +555,8 @@ out_compositor:
 WL_EXPORT int
 backend_init(struct weston_compositor *compositor,
 	     int *argc, char *argv[],
-	     struct weston_config *config)
+	     struct weston_config *config,
+	     struct weston_backend_config *config_base)
 {
 	const char *transform = "normal";
 	struct rpi_backend *b;

src/compositor-wayland.c

@@ -2056,7 +2056,8 @@ wayland_backend_destroy(struct wayland_backend *b)
 
 WL_EXPORT int
 backend_init(struct weston_compositor *compositor, int *argc, char *argv[],
-	     struct weston_config *config)
+	     struct weston_config *config,
+	     struct weston_backend_config *config_base)
 {
 	struct wayland_backend *b;
 	struct wayland_output *output;

src/compositor-x11.c

@@ -1701,7 +1701,8 @@ err_free:
 
 WL_EXPORT int
 backend_init(struct weston_compositor *compositor, int *argc, char *argv[],
-	     struct weston_config *config)
+	     struct weston_config *config,
+	     struct weston_backend_config *config_base)
 {
 	struct x11_backend *b;
 	int fullscreen = 0;

src/compositor.h

@@ -1599,7 +1599,8 @@ noop_renderer_init(struct weston_compositor *ec);
 int
 backend_init(struct weston_compositor *c,
 	     int *argc, char *argv[],
-	     struct weston_config *config);
+	     struct weston_config *config,
+	     struct weston_backend_config *config_base);
 int
 module_init(struct weston_compositor *compositor,
 	    int *argc, char *argv[]);

src/main.c

@@ -640,7 +640,8 @@ int main(int argc, char *argv[])
 	struct wl_event_loop *loop;
 	int (*backend_init)(struct weston_compositor *c,
 			    int *argc, char *argv[],
-			    struct weston_config *config);
+			    struct weston_config *config,
+			    struct weston_backend_config *config_base);
 	int i, fd;
 	char *backend = NULL;
 	char *shell = NULL;
@@ -739,7 +740,7 @@ int main(int argc, char *argv[])
 	if (weston_compositor_init_config(ec, config) < 0)
 		goto out;
 
-	if (backend_init(ec, &argc, argv, config) < 0) {
+	if (backend_init(ec, &argc, argv, config, NULL) < 0) {
 		weston_log("fatal: failed to create compositor backend\n");
 		goto out;
 	}